<template>
  <div>
    <table border="1" width="700" style="border-collapse: collapse">
      <caption>
        购物车
      </caption>
      <thead>
        <tr>
          <th>
            <input type="checkbox" v-model="checkAll" /> <span>全选</span>
          </th>
          <th>名称</th>
          <th>价格</th>
          <th>数量</th>
          <th>总价</th>
          <th>操作</th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="(item, index) in goodList" :key="index">
          <th><input type="checkbox" v-model="item.checked" /></th>
          <th>{{ item.name }}</th>
          <th>{{ item.price }}</th>
          <th>
            <button @click="delCount(index)">-</button>{{ item.num
            }}<button @click="addCount(index)">+</button>
          </th>
          <th>{{ item.price * item.num }}</th>
          <th>
            <button @click="delBtn(index)">删除</button>
          </th>
        </tr>
      </tbody>
      <tfoot>
        <tr>
          <td>合计:</td>
          <td colspan="5">{{ priceAll }}</td>
        </tr>
      </tfoot>
    </table>
  </div>
</template>

<script>
import { mapState, mapGetters } from 'vuex'
export default {
  computed: {
    ...mapState(['goodList']),
    ...mapGetters(['priceAll', 'priceOne', 'checkAll']),
  },
  data() {
    return {}
  },
  methods: {
    addCount(num) {
      this.$store.commit('addCount', num)
    },
    delCount(num) {
      this.$store.commit('delCount', num)
    },
    delBtn(index) {
      this.$store.commit('delBtn', index)
    },
  },
}
</script>

<style></style>
